Calibration apparatus

Description

FIG. 1 is a perspective view of a calibration apparatus showing our new design;

FIG. 2 is a perspective view viewed from another angle thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of a circled part of FIG. 1;

FIG. 10 is an enlarged view of another circled part of FIG. 1; and,

FIG. 11 is an enlarged view of a circled part of FIG. 2.

The broken lines in the drawings illustrate portions of the calibration apparatus which form no part of the claimed design.

Claims

The ornamental design for a calibration apparatus, as shown and described.